Caves that can't seem to quit producing the remains of prehistoric humans.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

The site of the climactic scene from the classic horror film is now a historic landmark.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

America's largest man-made forest was planted in an effort to bring back the past.

Catacombs turned marketplace.

Historic medieval fortified city in southwest France.

This massive blockhead sculpture hides an entire library.

Take black faced bears with giant clubs, white faced barbers wielding axes, hunters armed with shotguns, and mix in a lot of drinking.

A Romanesque tower appears when water levels drop.

Stunning Roman aqueduct used for 1900 years and still standing.

Commonly acknowledged as the only public monument to the Devil himself.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Religious dwelling in a Spanish volcano.

Mountain where Jesus was first tempted by the Devil.

These striking ruins of a castle resemble a ship's stern.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

Replica of Seville, Spains famous Giralda, a former minaret converted into a bell tower.

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.